load method
Retrieve a binary resource from the asset bundle as a data stream.
Throws an exception if the asset is not found.
The returned ByteData can be converted to a Uint8List (a list of bytes) using Uint8List.sublistView. Lists of bytes can be used with APIs that accept Uint8List objects, such as decodeImageFromList, as well as any API that accepts a List<int>, such as File.writeAsBytes or Utf8Codec.decode (accessible via utf8).
Implementation
@override
Future<ByteData> load(String key) async {
final span = _hub.getSpan()?.startChild(
'file.read',
description: 'AssetBundle.load: ${_fileName(key)}',
);
span?.setData('file.path', key);
ByteData? data;
try {
data = await _bundle.load(key);
_setDataLength(data, span);
span?.status = SpanStatus.ok();
} catch (exception) {
span?.throwable = exception;
span?.status = SpanStatus.internalError();
rethrow;
} finally {
await span?.finish();
}
return data;
}